Serie A transfer latest: Rumoured Arsenal target jeered by his own fans, could leave

All the latest summer transfer news from Serie A...

We start today's transfer round-up from Serie A with Napoli. Rafael Benitez's side have been linked with a whole host of central midfielders this summer, but their pursuit was ended today after the capture of Villarreal's Jonathan de Guzman. The Dutchman, who spent the last two seasons on loan at Swansea City, has signed for Napoli on a four-year deal for a fee in the region of €8m.

The signing of de Guzman all but ends Napoli's interest in Manchester United flop Marouane Fellaini. The Belgian endured a disappointing season at Old Trafford and had been lined up for a loan move to Napoli, but reports today suggest that their interest has cooled amidst de Guzman's arrival.

More from Benitez's men now, as centre back Federico Fernandez has left for the club for Swansea City, whilst confusion surrounds the future of reported Arsenal target Lorenzo Insigne. The 22-year-old forward was booed off the pitch after Napoli's 1-1 draw with Athletic Bilbao on Tuesday, resulting in the player's girlfriend telling fans that they 'don't deserve him at Napoli' - and speculation suggests he could leave before the transfer deadline.

Elsewhere in Serie A, AC Milan are set to respond to speculation of Manchester United's interest in Nigel de Jong by offering the Dutch international a new and improved contract. New Red Devils boss Louis van Gaal was believed to be interested in brining the combative midfielder to Old Trafford with him after they worked so well together at the World Cup, but Milan are looking to fend off interest with a new deal, with his current contract set to expire in a year.

Staying at the San Siro, Inter Milan have been linked with a move for rumoured Chelsea and Liverpool target Roberto Firmino, but Hoffenheim have declared that the Brazilian will be staying in Germany despite the interest from Walter Mazzari's men.

"We don’t comment on rumors and speculation on the market," said sporting director Alexander Rosen. "[Roberto] Firmino has a contract until 2017 and it is unlikely to change in this month of August."

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